Electrical discharge method of and apparatus for generating shock waves in water



Jan. 23, 1968 L. R. PADBERG, JR 3,364,708

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18. 1960 20 Sheets-Sheet 1 INVENTOR. LOUIS R. PADBERG JR.

ATTORNEY L. R. PADBERG, JR 3,364,708 DISCHARGE METHOD OF AND APPARATUS SHOCK WAVES IN WATER 3O Sheets-Sheet I:

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ATTORNEY OFF 48OMFD LECTRICAL FOR GENERATING n U Jan. 23, 1968 Filed July 18, 196

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6000V IZOMFD Jan. 23. 1968 R. PADBERG, JR 3,364,708

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 1960 Sheets-Sheet .3

l7 IO 8 f f VACUUM 9 [l---l SWWCH L TRANS PRESSURE POWER Cl 22 VESSEL 3O Cn Cn-I 4- SUPPLY I L 2 DUCER AND/OR INVENTUR LOUIS R. PADBERG JR.

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A T TORNEY Jan. 23, 1968 1.. R. PADBERG, J ELECTRICAL DlSCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER 5O Sheets-Sheet Filed July 18. 1963 DI LI SI 4| INVENTOR LOUJS R. PADBERG JR.

FIG. 6

ATTORNEY Jan. 23, 1968 L R. PADBERG, JR

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 1960 50 Sheets-Sheet b e2 53 so 1 \I k\ /V// A] A ////l 57 SI 53 55 DISTANCE FROM ELECTRODE TO BLANK 1 v2" 3" 41/2" 6" FLAT FACE ELECTRODE g A A m A s" CONCAVE SPHERICAL RADIUS f\ m A n ELECTRODE FACE |2"CONCAVE SPHERICAL RADIUS g n A A m ELECTRODE FACE 12"CONVEX SPHERICAL RADIUS n m A m ELECTRODE FACE INVENTOR. LOUiS R.PADBERG JR.

ATTOR NEY Jan. 23. 1968 R. PADBERG, JR 3,364,708

ELLECTRICAI, DISCHARGE METHOD OP AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 1a, 1968 :50 Sheets-Sheet 3- vwom mm x mmo vNON cm x ONO mozoowm kt? 00 v D 2, 6) 00mm m INVENTOR.

LOUIS R. PADBERG JR. BY

A T TORNE Y L. R. PADBERG, JR 3,364,708 DlSCHARGE METHOD OF AND APPAHATU Jan.23. 1968 ELECTRICAL FOR GENERATING SHOCK WAVES IN WATER 5O Sheets-Sheet Filed July 13, 1960 3 vmom cm x 90 2 $8 Q Q. m X 9o 3 $0M cm x 8Q em 6E fl Z-f A TTORNE Y Jan. 23. 1968 R. PADBERG, JR 6 EtLECTRICAI; DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHQCK WAVES IN WATER Filed July 113, 196C 50 Sheets-Sheet a R J e T R N E E8 0 R m U 0 L FIG. I3

ATTORNEY Jan. 23. 1968 R. PADBERG, JR ,3

ELECTRI 1 DISCHARGE METHOD OF AND APPARATUS F0 ENERATING SHOCK WAVES IN WATER Filed July 18, 1960 50 Sheets-Sheet 9 Fl I6 INVENTOR.

LOUI S R. PADBERG JR.

B3 am ATTORNEY 3,364,708 ATUS Jan. 23, 1968 R. PADBER ELECTRICAI. DlSCHARGE METHOD OF AND APPAH FOR GENERATING SHOCK WAVES IN WATER 5O Sheets-Sheet 10 Filed July 18.

x H\ m INVENTOR.

LOUIS R. PADBERG JR. BY

A T TORNEY Jan. 23, 1968 L. R. PADBERG, JR 3,364,708

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 196C 50 Sheets-Sheet 11 [NVENTUR LOUIS R. PADBERG JR.

A T TORNEY Jan. 23. 1968 L PADBERG, J 3,364,708

ELECTRICAL DlSCHARGE METHOD OF D APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 196C 50 Sheets-Sheet 12 FIG. 2!

INVENTOR LOUIS R. PADBERG JR.

A TTORNEY Jan. 23, 1968 PADBERG, JR 3,364,708

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 196C 30 Sheets-Sheet 13 INVENTOR LOUIS R. PADBERG JR.

A TTORNE Y Jan. 23, 1968 R. PADBERG, JR 3,364,708

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 1960 5-0 Sheets-Sheet 14 6" FROM ELECTRODES 'OF TRANSDUCER 7a 4 |/2" FROM ELECTRODES OF TRANSDUCER 7s MNMMmwmmuusunn1:1wDNTTN 3" FROM ELECTRODES OF TRANSDUCER 7s AV L 1 1/2" FROM ELECTRODES L T OF TRANSDUCER 78 L [/2 4 1/2" FROM ELECTRODES OF TRANSDUCER 56 INVENTOR,

LOUIS R. PADBERG JR.

ATTORNEY Jan. 23, 1968 L. R. PADBERG, JR 3,364,708

ELECTRICAL DISCHARGE METHOD OF AND APPARATUS FOR GENERATING SHOCK WAVES IN WATER Filed July 15, 196C :0 Sheets-Sheet 1s 6" FROM ELECTRODES OF TRANSDUCER 7a 4 1/2" FROM ELECTRODES OF TRANSDUCER 78 3" FROM ELECTRODES 1 1/2" FROM ELECTRODES OF TRANSDUCER 78 4 |/2" FROM ELECTRODES OF TRANSDUCER 56 L FIG. 24

INVENTOR.

'LOUIS R. PADBERG JR.

. A TTORNEY Jan. 23. 1968 L. R. PADBERG, JR 3,364,708

E'LEC IRIUAI. DISCHARGE METHOD OF AND APPARATUS 7 FOR GENERATING SHOCK WAVES IN WATER Filed July 13, 196C 20 SheetS-Sheet l i FIG. 25

INVENTOR.

LOUIS R. PADBERG JR.

A TTORNE Y Jan. 23. 1 968 L R. PADBERG, JR ELECTRICAL DISCHARGE METHOD OF AND APPARATU FOR GE SHOCK WAVES IN WATER NBRATING ed July 1 CO Sheets-$heet 1".

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TRANSDUCER 78 TRANSDUCER 76 FIG. 26

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INVENTOR.

LOUIS R. PADBERG JR.

ATTORNEY 3,364,708 OF AND APPARATUS 3-0 Sheets-Sheet 1L- Jan- 23, 1 6 L R. PADBERG, JR

ELECTRICAL DISCHARGE METHOD FOR GENERATING SHOCK WAVES IN WATER Filed July 18, 1965 INVENTOR.

LOU/S R. PADBERG JR.

ATTORNEY Jan. 23, 1968 Lv R. PADBERG/JR DISCHARGE METHOD OF AND APPARATU ELECTRICAL FOR GENERATING SHOCK WAVES IN WATER 5O Sheets-Sheet 19 Filed July 18, 196C mm 6E w mwo omzqmk 20mm 8. mmopomzfih 205 INVENTOR.

LOUIS R. PADBERG JR.

kliifi A TTORNEY Jan. 23, 1968 R. PADBERG, JR

CAI DISCHARGE METHOD OF AND APPARATU ELECTRI FOR GENERATING SHOCK WAVES IN WATER CO Sheets-Sheet 20 Filed July 13, 1960 FIG. 30

INVENTOR.

LOUIS R. PADBERG JR.

A TTORNE Y 

1. THE METHOD OF GENERATING EXPLOSIVE SIMULATING SHOCK WAVES WITHIN A BODY OF CONDUCTIVE WATER COMPRISING THE STEPS OF CAPACITIVELY STORING ELECTRICAL ENERGY AT A LEVEL COMPARABLE TO THE POTENTIAL ENERGY OF EXPLOSIVES AND AT A PREDETERMINED VOLTAGE LEVEL RELATIVE TO THE CONDUCTIVITY OF A PREDETERMINED VIRTUAL SHORT CIRCUIT WATER PATH WITHIN SAID BODY OF WATER, AND DISCHARGING SAID STORED ELECTRICAL ENERGY AT WILL THROUGH A NON-INDUCTIVE CIRCUIT INCLUDING SAID WATER PATH AND A RATE OF DISCHARGE SUFFICIENT TO GENERATE SAID SHOCK WAVES WITHIN THE WATER. 